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A new transmission source-based attenuation correction system, c.clear, has been developed for the Siemens c.cam cardiac SPECT camera. The transmission sources are two arrays of 14 Gd-153 line sources placed in cassette wings affixed to the detectors. The source strengths decrease geometrically away from the array center. The absorbed radiation dose received from these sources is about 0.01% of that...
A novel algorithm has been developed for near infrared (NIR) imaging of tissue optical properties with embedded heterogeneity. The algorithm was based on the optical measurements of the absorption perturbation by a matrix of multiple source detector pairs. Direct superimposition algorithm was used to calculate the two dimensional projected image of the tissue absorption. This absorption map is then...
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